Condenser



Patented-*July 14, 1936 TUN-[TED STATES coNnENsEn RichardlE. Welch, Chicago, Ill., assignor to' W. M.

Welch Manufacturing Company, Chicago, Ill., a. corporation of'lllinois Y 7 claims.

This invention has todo with a condenser and `relates particularly to a coupling orend member therefor.

An improved detachable coupling member for' maintaining concentric tubes in assembly;

A new condenser coupling member having as .a part thereof an inlet or Outlet nipple;

A novel coupling member which provides a cushioning support for a condenser;

Animproved condenser coupling vmember for spacing apart concentrically disposed tubes and for maintaining such tubes' at a predetermined spaced-apart relation;

A Vunique construction for a member. used for spacing concentrically arranged tubes or the like.

A condenser coupling member having as a part thereof an inlet or outlet nipple toeliminate an inlet -or outlet nipple passing through the wall or fused to the wall of the jacket.

A new condenser jacket coupling member having as a'part thereof an inlet or outlet nipple, and soattached to the inner and outer tubesA of .the condenser that the inlet and outlet tubes may be adjusted in angular relationship to each, other 4asdesired. 1 Y

These objects, and/such other objects as may hereinafter appear, are obtained -by the novel constructiomunique arrangement, and .improved combination ofthe several elements which con-4 stitute the-invention, a single embodiment of which is illustrated in the sheet of drawing appended hereto and made a partof this application.

In said drawing:

Figure 1 is a side elevation of an assembledcondenser comprising concentric tubes and in which twoof the coupling' members hereinafterA described are employed, the intermediate tube portions being broken away;

" coupling members; a'nd Figure 3` is an elevation of the coupling member shown in Figure 2.

Like -reference vcharacters are used for designating the same parts in the drawing and in the description which follows.

The several figures may be read concurrently' for convenience. Figure -1 illustrates an assem bled condenser comprising a long tube 24, a

shorter'tube 26 of larger diameter than that o! A .28 being specially shaped o'r r'lel'ipher allyl ribbed Figure 2 is a diametric section o1' one oi' said' Application October 5, 1934, Serial No. '146,939

the tube 24, and two coupling members, one be ing at each end of the tube 26. A thistle, funnel, or modified' thistle end 25 may be supplied upon long tube 24.

Between the two coupling members and upon 5 the exterior thereof, the tube 24 is of a uniform diameter and the tube .26 is of uniform diameter throughout its length. Each coupling comprises an end IU which is relatively thick and has integral therewith the remainder of the parts 10 now to be described, except the nipple.-.

I'he material of the coupling may be of soft rubbenthis being particularly appropriate for laboratory use.

Depending from the end Ill is an annular 15.

flange 4II which is moulded or otherwise-formed to provide different thicknesses of. material from.

the end i0 tothe open side thereof. The main section I2 depending from cent its open' side. l

, Interiorally4 there is an annular surface I4 delining the relatively thick ilangeand extending from the end I0 toa groove I3. 'I'he groove I3 25 is nearer the4 end I0 than the shoulder between the ange II and the short constricted section I2. 'I'he interior ofthe section extending from the groove I3 tothe open side of the coupling is of uniform diameter. A30

-Concentric of the face I4 is a hub I5 which has radially extendingA ribs I6; 'Ihe actual the main body adja 'length ofthe hub I5, and of the ribs I6 is equal to- :that of the thick part of 'the flange II. The flat ends 'I1 `of the ribs I 6 form a stopor shoulder. 35

to retain soft -rubber tubing -slipped thereover. Cement maybe used to hold the nipple in boss 20. In use, one of the couplings is attachedto the stem of the long tube 24 `and moved therealong in the direction of the thistle end or tip 25. The open end of the coupling is away from the thistle end. 'l'.'he tube 26 is slipped over the tube 24 and into the coupling member, the periphery of the tube 2s being engaged by me interior of section lz r of the couplingand the end of thetube abutting the niemeer n. The materia of part l2 is quite iexilole or elastic and firmly holds the tube 26.

A second coupling is then slipped over and moved along the tube 24 with the open end of the coupling in thel direction of the tube 26. 'I'he coupling is secured to the tube 26 in the same manner as the first referred to coupling was attached thereto. yBy the arrangement shown, a condenser is pnovided in which the nipples may be at any desired angle relative to one another. Thenow of liquid into and out of the condenser by way of the nipples 23 is uninterrupted. the inner ends of such'nipples being in a pocket or opening between two'of the ribs' I6 and the hub I5. The ends I1 of ribs I6 prevent the coupling members from being moved too closely together and the groove I3 and the lip section I2 provides' a rm, leak-proof connection maintaining the tube in spaced relation to tube 24. Threaded or locking connections may be substituted for the What is claimed as new and is desired to be securedby Letters Patent of the United States is:

1. In combination, coi centric tubes, a coupling member of resilient material, said coupling member comprising a hub for holding the inner tube and -a flange for holding the oute'r tube, there being radial ribs between said hub and said .'ilange.

2. In combination, concentric tubes, a coupling member of resilient material, said coupling member comprising a hub for holding the inner tube and a flange for holding the vouter tube, therebeing 'radial-ribsbetween said hub and said flange.'

and the hub being ofless length than said flange. 3. In combinatiom'concentrictubes, a coupling member of resilient material, said coupling member comprising a hub for holding the inner tube and a flange for lholding the outer tube, there being radial ribs'between said hub and said flange, and the :hub being of less length than said flange, and a nipple extending through said flange between adjacent ribs.

4. A flexible coupling vfor concentric tubes comprising a cylindrical relatively thick body with a closed end and having a constricted mouth of relatively thin material, there being in said body a hub of less length than said body, ribs radiating from said hub, and a peripheral groove about the interior of said body in a transverse plane adjacent said ribs and dividing said relatively thick body from said relatively thin constricted mouth.

5. Inombination, concentric cylindrical glass tubes, and a coupling member comprising a cap of relatively soft rubber, having a hub for holding the inner tube, a lipspaced from said hub for holding the outer tube, said cap being of larger outside diameter than the outer of said concentric tubes and a conduit opening through the coupling into the space between the said tubes.

6. A condenser comprising a glass outer tube of selected length open at the ends thereof and having walls without apertures between the ends,

a glass inner tube longer than the outer tube and adapted to fit in spaced relation within the outer tube with its ends extending beyond the ends of the outer tube, a coupling forv said tubes, comprising a rubber cap having a lip adapted to t resiliently about an end of the outer tube, an' end wall adapted to close the space between said tubes and having an aperture adapted resiliently to receive said inner tube, and a conduit opening through said coupling into the space between said tubes.

'7..A condenser comprising a glass outer tube of selectedlength open at .the ends thereof and having walls without apertures between the ends, a glass inner tube longer than the outer tube and adapted to fit in spaced relation within the outer tube with its ends extendingbe'yond the ends of the outer tube, a coupling for said tubes comprising a rubber cap having a lipadapted to t resiliently about an end of the outer tube, a relatively thick end wall adapted to close the space between said tubes and having an aperture adapted to receive resiliently said inner tube, said 'end wall spacing said tubes apart, a hub having an -aperture in alignment with the apertures in said end wall and adapted to iit resiliently-about said inner tube, and a conduit opening through said coupling into the space between said tubes.

' RICHARD E. WELCH. 

